MolocoMoloco

Inside Moloco's CARA: the AI that compounds

By Tal Shaked·2026年8月7日·14 分钟阅读

摘要

Moloco的CARA(Compound Ad Recommendation Architecture)是其专为开放互联网效果广告打造的复合式AI系统。与Google、Meta等围墙花园不同,开放互联网缺乏统一的登录身份,信号碎片化严重,且每笔交易必须在几十毫秒内完成决策。CARA由Campaign Automation、Supply、Ad Recommendations、Bidding、Creative和Signals六大技术域构成,各域相互增强,例如更精准的推荐可优化出价,更多获胜流量又反哺数据,形成复合增长循环。

<br>CARA的核心挑战在于身份碎片化、多路径竞拍自竞、信号延迟及部分交易缺乏详细归因(如SKAN)。为此,系统采用序列模型、多任务学习和深度交叉网络,从跨应用事件历史中构建用户稠密表示,以应对稀疏信号。同时,知识蒸馏将离线大模型的能力压缩至满足实时延迟的轻量模型,确保训练与推理的一致性。

<br>持续学习与实验是CARA迭代的引擎。其训练平台每天处理超过60亿事件(曝光、点击、安装、应用内行为),模型每两小时可重训并部署。在线实验系统支持数百个并发实验,精准测量小数级别的效果变化。

2025年,Moloco通过数千次实验验证了65项模型改进,并全面上线,最终为广告主带来CPI下降14%、CPA下降17%、ROAS提升27%的显著成效。<br>生成式AI在CARA中发挥辅助作用,用于创意素材规模化生成、自然语言与视频理解,丰富信号输入,但前沿模型尚无法替代CARA在精确价值预测和极高频实时决策中的能力。Moloco正以代理(Agent)技术优化投放策略与客户交互,同时继续探索新的优化空间,持续为广告主创造增量价值。

分析师点评

值得关注的是,Moloco罕见地公开了其AI系统CARA的完整架构。在广告平台普遍以模型细节为机密的当下,这种透明度本身即是行业信号:开放互联网的广告技术竞争已从单一算法比拼转向系统化工程能力。关键信号在于,CARA强调六个技术域的复合推进,而非某个模型突破,这暗示供应方评估的重心可能从静态指标转向系统的自我迭代机制。

此外,文章间接凸显了walled garden与开放互联网的鸿沟——后者没有确定性身份和统一拍卖,信号碎片化是常态,而Moloco的做法代表一种以实时学习和跨域复用应对不确定性的路径。在隐私政策持续收紧的背景下,这种对碎片信号的利用方式或许具有更广泛的参考意义。

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